Blocks Modular Smartwatch
For most people, buying a smartwatch comes down to which one offers the feature set they're looking for. The Blocks Modular Smartwatch wants to fix this by letting you add any feature you want, whenever you want it. It does so by pairing the main watch case to a series of hot swappable and easily replaceable modules that let you add features like extra battery, heart rate monitoring, GPS, NFC, and altitude, pressure and temperature sensors on-the-fly. Of course, it also handles common tasks like displaying notifications, handling phone calls, and activity tracking, making it one of the most versatile smartwatches out there.